package ooday5;

public class StaticFinalDemo {
    public static void main(String[] args) {
        System.out.println(pai.PI);
        //pai.PI=3.14;编译错误，常量不能被改变
        System.out.println(pai.min);

    }
}

class pai{
    public  static final double PI=3.1415926535;
    public   static int min=5;
}